**Question 4**What would happen in glycolysis if your body was supplied entirely with L-glucose instead of D-glucose?- A. Glycolysis would not work at all, and your body would be severely energy-deficient- B. Glycolysis would still work, but only at about half capacity- C. Glycolysis would work equally well- D. None of the other answers is correct- E. Glycolysis would not work very well with the normal enzymes, but isozymes of those enzymes would be activated instead

Glucose is a monosaccharide molecule with six carbon atoms. It is an aldohexose and an important…

Answered: Question 4 What would happen in…

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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Question 3 Complete oxidation of a 16-carbon fatty acid can yield 129 molecules of ATP. How many ATP molecules would be generated if a 16-carbon fatty acid were metabolized solely by the TCA cycle in the form of only 8 Acetyl CoA molecules? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. b 8. d 12 e 15 f 32 38 30 i 2 Unanswered A Save 4.
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1. What role does oxygen play in the ETC? What ultimately happens to that oxygen? (What compound(s) does it become?) 2. What are the rate-limiting enzymes of glycolysis and the TCA cycle? Glycolysis: TCA:
10. The first reaction in glycolysis is the phosphorylation of glucose: Pi + Glucose → Glucose-6-phosphate This is a thermodynamically unfavorable process with AGº = +13.8 kJ/mol. In a liver cell at 37 °C the concentration of both phosphate and glucose are normally maintained at about 5 mM each. The equilibrium concentration of glucose-6-phosphate according to the above data is: A. 1.18 x107 B. 8.50 x 104 C. 4.25 x 105 D. 2.21 x 10s E. 1.38 x 108 F. 3.02 X 103 G. 6.75 x 10-6 H. 4.08 x 10 I. 9.15 x106
Question 16 In the skeletal muscle, insulin increases fatty acid synthesis by up regulation of which pathway? O A. Oxidative phosphorylation O B. Glycolysis O C. Glycogenesis O D. Lipolysis O E. B oxidization
23. The substrate used in the LAST step of glycolysis is _____. Select one: a. phosphoenolpyruvate b. pyruvate c. glyceraldehyde-3-phosphate d. 1,3-bisphosphoglycerate
QUESTION 2 Which of the following uses creatine kinase? OA. Aerobic respiration OB. Phosphagen system OC. Lactic Acid Fermentation OD. Glycolysis
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4. As stated in your textbook, the first two reactions in glycolysis associated with unfavorable AG° values, i.e., AG° > 0, both produce a product with high phosphoryl group transfer potential. (ATP formation is not considered here.) Compare the two reactions and describe what the driving force is for both reactions that allows glycolysis to proceed to formation of pyruvate.
3. Fates of pyruvate. Pyruvate has several metabolic fates (some of which you'll learn later) but in anerobic conditions pyruvate has two outcomes. a. For these anerobic outcomes of pyruvate draw the reactions with names and structures of the reactants and products. Please name the enzymes and cofactors necessary. b. During strenuous activity, the demand for ATP in muscle tissue is vastly increased. In rabbit leg muscle or turkey flight muscle, the ATP is produced almost exclusively by lactic acid fermentation. ATP is formed in the payoff phase of glycolysis by two reactions, promoted by phosphoglycerate kinase and pyruvate kinase. Suppose skeletal muscle were devoid of lactate dehydrogenase. Could it carry out strenuous physical activity; that is, could it generate ATP at a high rate by glycolysis? Explain.
Question 2 During fasting metabolism, which tissue is the source of most of the glucose found in the blood stream? ⒸA. Skeletal Muscle OB. Brain ⒸC. Liver OD. Adipose O E. Pancreas

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